Music-leaf turner



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UNTTED STATES PATENT Turion.

SANFORD D. CASE, OF ROCK HILL, NEV YORK.

MUSIC-LEAF TURNER.

SPECIFICATION forming part of Letters Patent No. 538,153, dated April23, 1895. Application sied August 29.1894. sein n. 521.648. (Nomad.)

To @ZZ whom. t may concern:

Be it known that I, SANFORD D. CASE, a citizen of the United States,residing at Rock Hill, in the county of Sullivan and State of New York,have invented new and useful Improvements in Music-Leaf Turners, ofwhich the following is a specification.

The object of this invention is to simplify the construction of leafturners and the invention resides in the novel features of constructionset forth in the following specification and claims and illustrated inthe annexed drawings, in which p Figure 1 shows the leaf turner in planView with the arms in position before they have turned, the view being asection along a: a: Fig. 3. Fig. 2 is a view like Fig. 1 showing thearms after having turned. Fig. 3 is a front elevation in section alongyyFig. 1. Fig. 4 is a perspective view of theleaf turner. Fig. 5 is adetail view of the shaft. Fig. 6 is a section along e' .z Fig. 5.

In the frame or' box 1 is keyed or fixed a shaft 2 on which the arms 3(more or less in number) can turn independently of one another. Each arm3 is engaged by a spring t braced or fixed at one end to shaft 2 so asto be under proper tension. Each arm 3 carries an extension 5 having afinger 6 which at its free end is bent back upon itself to form a loopbetween the members of which is slipped a sheet of music. The springs atend to rotates the arms 3 with fingers 6 in the direction of arrow 7,that is in the direction to turn a leaf, or from the position shown inFig. 1 to the position shown in Fig. 2.

The arms 3 can be held against rotation by being engaged between teeth 3on a disk 9 adapted to rotate on a stud 10 and having teeth 11 adaptedfor engagement by a pawl or detent 12 swinging on pivot 13 and havingits arm 14 engaged by spring 15 for pressing the pawl 12 toward theteeth 11. A slide rod 16 has a finger button 17 and a toe 1S whichlatter rests on pawl arm 14. When the slide rod 16 is pushed in thedirection of arrow 16 the toe will first press on arm 14- and then slipoff said arm so as to lift pawl 12 out of engagement long enough toallow the disk 9 to rotate the space of one tooth 11 in the direction ofarrow 20, whereupon the pawl engages the next succeeding of the teeth1l.

The rotation of disk 9 in the direction of arrow 2O is effected by aspring ft swinging that one of arms 3 which at the moment of turning isthe leading arm of the unturned or iin-actuated arms out of engagementwith teeth 8, the next succeeding arm 3 being caught and held by teeth 8until button 17 is again pressed. By successive actuations of butt-on 17one finger' 6 after the other is swung so as to turn its contained leaf.

To the leading arm of the series of arms 3 is connected a string 21connected to arm 22 extending from gearwheel 23 turning on pivot 24 andengaged by rack 25 having a button or handle 26. By pulling handle 2G inthe direction of arrow 27 the leading one of the arms 3 will be set backto its starting point, said leading arm pushing back with it thesucceeding arms 3 so that all the arms 3 can be returned to the startingpoint or moved in the direction of arrow 28 from the position shown inFig. 2 to that shown in Fig. 1.

The top plate 29 of the box 1 has a groove or slit 30 for the passage ofthe arm extensions 5. The arms 3 formed of wire have their free endsreadily bent into eyes Ato encircle shaft 2. The eye A of the leadingarm is enlarged so that the cord or flexible connection 21 will beeffectively wound about this eye when this leading arm moves forward toturn the first leaf, the uuwinding of this cord by handle or retractor26 as already noticed serving to return the leading arm, which in itsturn presses back or returns all succeeding arms that may have beenturned.

The manner in which a finger 6 engages a leaf 31 is seen in Fig. 4t. Theleaf turner is readily placed upon a piano or elsewhere as it may berequired.

The inner end of slide 16 is curved or bent so as to be deflected in itsinward movement by a properly located stud 32 so that the toe 13 willproperly release pawl 12 at the required moment.

lVhat I claim as new, and desire to secure by Letters Patent, is

1. In a leaf-turner, the combination of a series of pivoted armsprovided with springs for successively turning them in one direction, arotary disk having teeth projecting from its periphery at equaldistances apart, said teeth acting to successively embrace said pivotedIOO arms intermediate their' ends and hold them against the action oftheir springs, a pawl for holding said disk and provided with a handlefor releasing it to cause the teeth to release the arms one by one,substantially as de scribed.

2. In a leaf-turner, the combination of a series of pivoted armsprovided with springs for successively turning them in one direction, arotary disk having teeth projecting from its periphery at equaldistances apart, said teeth acting to successively embrace the saidpivoted arms intermediate their ends and hold them against the action oftheir springs, a paWl for holding said disk and provided with a handlefor releasing it to cause the teeth to release the arms one by one, andindependent mechanism for simultaneously returning said arms to theirinitial position in engagement with said teeth, substantially asdescribed.

3. In a leaf-turner, the combination of a series of pivoted armsprovided with springs for positions in engagement with the said teeth, x

substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

SANFORD D. CASE.

Witnesses:

GEORGE BUNDLE, M. A. RUNDLE.

